US4868041A - Cloth for protection against flames - Google Patents
Cloth for protection against flames Download PDFInfo
- Publication number
- US4868041A US4868041A US07/153,914 US15391488A US4868041A US 4868041 A US4868041 A US 4868041A US 15391488 A US15391488 A US 15391488A US 4868041 A US4868041 A US 4868041A
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- United States
- Prior art keywords
- fibers
- cloth
- flameproofed
- cellulosic
- flames
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/08—Heat resistant; Fire retardant
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/513—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads heat-resistant or fireproof
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/01—Natural animal fibres, e.g. keratin fibres
- D10B2211/02—Wool
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/92—Fire or heat protection feature
- Y10S428/921—Fire or flameproofing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2936—Wound or wrapped core or coating [i.e., spiral or helical]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
- Y10T428/2965—Cellulosic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
- Y10T428/2967—Synthetic resin or polymer
- Y10T428/2969—Polyamide, polyimide or polyester
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3065—Including strand which is of specific structural definition
- Y10T442/3073—Strand material is core-spun [not sheath-core bicomponent strand]
- Y10T442/3081—Core is synthetic polymeric material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3976—Including strand which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous composition, water solubility, heat shrinkability, etc.]
- Y10T442/3984—Strand is other than glass and is heat or fire resistant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/40—Knit fabric [i.e., knit strand or strip material]
- Y10T442/444—Strand is a monofilament composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
Definitions
- the present invention relates to cloth having excellent protective property against flames suitable for clothes to be put on at places where a person may be exposed to a high temperature or flames for a moment, for example, fire fighting ranger's clothes, fireman's coat, special clothes for policemen, rescuer's clothes, racer's clothes, military uniforms and pilot's suits as well as fireproofing clothes and furnace operator's clothes in the field of oil, gas, electricity and iron industries.
- flameproofed cotton cloth or wool cloth, or cloth of wholly aromatic polyamide fibers in which the raw material itself has fire retardance has been used for clothes to be put on at places where a person may be exposed to a high temperature or flames for a moment.
- sufficient protection against flames has been hardly obtained by these cloths.
- flameproofed cotton or wool cloth it has a low carbonization temperature and is easily carbonized by contacting with flames for a short period of time in spite of its excellent flameproofing property.
- the carbonized part of the cloth has low strength and brittle, such a part is torn in a hole only by slightly applying force.
- wholly aromatic polyamide fibers have extremely excellent heat resistance and fire retardancy, they shrink remarkably upon contact with flames. Spontaneously, cloth of these fibers is torn in a hole at the flame-contacted part.
- these cloths have such a defect that they are easily torn in a hole at a flame-contacted part in spite of their excellent flameproofness and fire retardancy. This indicates that there may be a great danger of flame invasion from a hole upon contact with flames, when such cloth is used at places where a person may be exposed to a high temperature or flamed for a moment.
- cloths of uniformly blended yarns of wholly aromatic polyamide fibers and cellulosic fibers with or without flameproofing are put into practical use, such cloths have defects that strength of cloths become low after contact with flames; cloths can not be dyed uniformly because wholly aromatic polyamide fibers are disposed on their surfaces; they have low light-resistance because color of wholly aromatic polyamide fibers is changed by exposure to sunlight; and they lack hand and drape required for clothes to be put on the body.
- the cloth can be easily and uniformly dyed, and has excellent hand and drape as well as comfortableness (to wear).
- FIG. 1 is a perspective of an apparatus used herein for determination of protective property against flames.
- FIG. 2 is a schematic side view illustrating the relation between a sample, a burner and a flame detector of the apparatus of FIG. 1.
- cloth for protection against flames which comprises woven or knitted composite yarns wherein wholly aromatic polyamide fibers of a general formula:
- Ar 1 , Ar 2 and Ar 3 are independently bivalent aromatic groups,respectively, are disposed as cores and flameproofed cellulosic fibers and/or wool fibers are disposed around said cores.
- the cloth for protection against flames of the present invention is not torn in a hole by shrinkage and is not broken by slightly applying force upon contact with flames. Therefore, it has excellent protective property against flames when it is used for clothes to be put on at places where a person may be exposed to a high temperature or flames for a moment.
- the wholly aromatic polyamide fibers used in the present invention are those at least 85 mole % of amide bonds of which are formed from the reaction of aromatic diamine and aromatic dicarboxylic acid components.
- examples of thereof include polyparabenzamide, polyparaphenyleneterephthalamide, poly-4,4'-diaminobenzanilideterephthalamide, polyparaphenylene-2,6-naphthalicamide, copolyparaphenylene/4,4'-(3,3'-dimethyl-biphenylene)terephthalamide, copolyparaphenylene/2,5-pyridyleneterephthalamide, polyorthophenylenephthalamide, polymetaphenylenephthalamide, polyparaphenylenephthalamide, polyorthophenyleneisophthalamide, polymetaphenyleneisophthalamide, polyparaphenyleneisophthalamide, polyorthophenyleneterephthalamide, polymetaphenyleneterephthalamide, poly-1,5-naphthalenephthalamide, poly-4
- the wholly aromatic polyamide fibers used in the present invention are meta-wholly aromatic polyamide fibers and, particularly, they are metawholly aromatic fibers synthesized from metaphenylenediamine and isophthalate chloride, for example, Nomex (manufactured by DuPont de Nemours and Co.) and the like.
- the flameproofed cellulosic fibers used in the present invention are cotton, rayon, polynosic fibers or mixed fibers of these fibers and other fibers wherein 1.0 to 5.0% by weight of phosphorus and 0.5 to 3.0% by weight of nitrogen based on the weight of the fibers weight are added, andhave a limited oxygen index value (LOI value) of not less than 0.25, preferably, not less than 0.27. Flameproofed cotton fibers are Preferred.
- Flame-retarded rayon or polynosic fibers are those obtained by adding a polyphosphonate compound having a molecular weight of 500 to 10,000 to a spinning solution for preparing viscose man-made fibers such as, for example, that described in Japanese Patent Kokoku No. 48-2693 (5 to 20% byweight based on the weight of fiber yarns), and spinning according to a conventional method.
- a polyphosphonate compound having a molecular weight of 500 to 10,000 to a spinning solution for preparing viscose man-made fibers such as, for example, that described in Japanese Patent Kokoku No. 48-2693 (5 to 20% byweight based on the weight of fiber yarns), and spinning according to a conventional method.
- phosphorus and nitrogen may contain in thesame molecule.
- Flame-retarded cotton is that post-processed with a phosphorus and/or nitrogen containing flame-retardant compound.
- the post-processing can be carried out in the form of cotton before compounding with wholly aromatic polyamide fibers, or in the form of composite yarns or cloth compounded with wholly aromatic polyamide fibers.It is preferred to carry out the post-processing in the form of cloth wovenor knitted with composite yarns compounded with wholly aromatic polyamide fibers.
- the amount of phosphorus added in the flameproofed cellulosic fibers of the present invention is less than 1.0% by weight, flameproofness becomes insufficient and the desired protective property against flames can not be obtained.
- the amount of phosphorus added is more than 5.0% by weight, phosphorus added becomes too much, which results in an impediment to spinning property and lowering of hand and drape or strength.
- Addition of a nitrogen containing compound is effective for controlling the amount of a phosphorus compound within a suitable range.
- Wool fibers used in the present invention may be conventional fibers and their LOI is also not less than 0.25, preferably, not less than 0.27. Flameproofing of the wool fibers can be carried out according to a conventional manner and post-processing can be also employed.
- the wholly aromatic polyamide fibers and the flameproofed cellulosic or wool fibers are compounded in the form of composite yarns composed of cores of the wholly aromatic polyamide fibers and the outer layers of the flameproofed cellulosic or wool fibers formed about the cores.
- a ratio of covering the wholly aromatic polyamide fibers of the cores is of importance. It is necessary that the ratio is not less than 70%, preferably, not less than 80%.
- a ratio of the wholly aromatic polyamide fibers : the flame-retarded cellulosic or wool fibers to be compounded is 60:40 to 10:90, preferably, 50:50 to 20:80.
- the composite yarns wherein the wholly aromatic polyamide fibers are disposed in the cores and flameproofed cellulosic or wool fibers are disposed about the cores can be obtained, for example, by the method disclosed in Japanese Patent Kokai No. 57-5924 which comprises supplying two kinds of slivers to a draft region of a roving frame, overlaying slivers being drafted with a partially drafted sliver fiber bundle, drafting both of them to obtain rovings having good coverage of the inner fibers with the outer fibers, and then spinning fibers into yarns with a spinning frame, or by the method which comprises twisting a bundle of the wholly aromatic polyamide filaments for the core, then winding cellulosic or wool fiber spun yarn round the core.
- the composite yarns obtained is cotton count of 7 to 60, preferably, 10 to 40.
- the composite yarns may be in the form such that the cellulosic or wool fiber slivers are disposed about each bundle of the wholly aromatic polyamide long fibers, or cellulosic or wool fiber spun yarns are wound round each bundle of the wholly aromatic polyamide long fibers.
- the cloth for protection against flames of the present invention is woven or knitted cloth of the above composite yarns, that is, woven cloth such as plain cloth, twill and the like or knitted cloth having weight of 100 to 500 g/m 2 , preferably, 150 to 350 g/m 2
- the cellulosic and/or wool fibers which have excellent water vapor absorption and dyeing properties are concentrated onthe surface layers of the yarns. Therefore, good comfortableness to wear ofclothes can be imparted and the cloth can be dyed in desired color. Further, discoloration due to exposure to light can be prevented because the wholly aromatic polyamide fibers having low light resistance is covered with the cellulosic or wool fibers.
- both fibers compounded in the composite yarns are compensated each other to give good protection against flames. That is, flameproofed cellulosic and/or wool fibers prevent the wholly aromatic fibers from heat-shrinking upon contact with flames and the wholly aromatic polyamide fibers support a brittle carbonized part of flameproofed cellulosic and/or wool fibers.
- the core-sheathtype structure of the composite fibers makes possible to retain the shape of cloth and keep most of original strength even if the cellulosic and/or wool fibers are carbonized by contacting with flames to lose their strength because the wholly aromatic polyamide fiber bundles which can keep strength are left as they are.
- the apparatus shown in FIG. 1 has a sample holder 1 and a burner 4 put under the sample holder.
- the sample holder is connected to a temperature recorder 6 and the burner is connected to a gas flowmeter 5.
- the sample holder 1 has a flame detector 3 which is faced to the burner 4 through a sample 2.
- the gas flowmeter controls the amount of heatfrom the burner.
- the sample 2 was exposed to flames of the burner 4 for ten seconds.
- the average heat flow rate of the burner was set at 2.0 cal/cm 2 .sec by the gas flowmeter 5. And, a rise in temperature after ten seconds was recorded by the flame detector 3 disposed above the sample (10 mm). After this determination, 1 kgf/5 cm or 1.8 kgf/5 cm of force was applied to thesample in the warp direction.
- Limited oxygen index (LOI) value Only cellulosic fibers or wool fiberswere taken out by unfixing the yarns, dispersing them in water, filtering and drying to obtain a nonwoven fabric sheet. This was measure according to the method of JIS-K-7201.
- the wholly aromatic polyamide fibers Nomex (manufactured by DuPont de Nemours and Co.) of 1.5 denier and 38 mm in cutlength and cotton fibers, two layer structured spun yarns (cotton count: 14) wherein Nomex fibers were disposed in the cores and cotton fibers weredisposed about the cores were prepared according to the method of the aboveJapanese Patent Kokai No. 57-5924.
- the ratio of compounding the wholly aromatic polyamide fibers and cotton fibers in the yarns was 25/75 by weight.
- twill fabric having the weightof 298 g/m 2 and the thread count of 110 warps and 50 wefts per inch which was desized, scoured and bleached according to a conventional method.
- the twill fabric was dipped into an aqueous solution containing 30% by weight of a flameproofing agent the active ingredient of which was N-methyloldimethylphosphonopropionic acid amide (Pyrobatex CP, manufactured by Ciba-Geigy Ltd.) and 0.5% by weight of ammonium chloride, and drawn so that wet pickup became 60%.
- the fabric was dried and heat-treated to obtain the desired cloth for protection against flames.
- Yarns of cotton count 40 were spun from the same raw fibers as in Example 1, Nomex (manufactured by DuPont de Nemours and Co.) of 1.5 denier and 38 mm in cut length.
- Spun yarns of cotton count 20 were prepared by winding yarns of cotton count 40 spun from the following flame retardant polynosicfibers round the cores of the above wholly aromatic polyamide yarns (the ratio of the wholly aromatic polyamide fibers and the flame retardant polynosic fibers: 50/50).
- Raw flame retardant polynosic fiber Polyorganophosphazen was added to a viscose spinning bath so that the amount of phosphorus in the bath was 2.8% by weight and spinning was carried out according to the method described in Japanese Patent Kokoku No. 48-2693.
- Uniformly blended yarns of cotton count 14 were prepared by using the same Nomex of 1.5 denier and 38 mm in cut length and cotton fibers as used in the above Example 1 at the blending ratio of 25/75. The yarns were used to obtain twill fabric having the weight of 290 g/m 2 and the thread count of 110 warps and 50 wefts per inch.
- This fabric was dipped into an aqueous solution containing 30% by weight ofa flameproofing agent the active ingredient of which was N-methyloldimethylphosphonopropionic acid amide (Pyrobotex CP, manufactured by Ciba-Geigy Ltd.) and drawn so that wet pickup became 60%. Then, the fabric was dried and heat-treated to obtain a comparative sample.
- a flameproofing agent the active ingredient of which was N-methyloldimethylphosphonopropionic acid amide (Pyrobotex CP, manufactured by Ciba-Geigy Ltd.)
- a comparative cloth sample was obtained according to the same manner as described in Comparative Example 1 except that blending ratio of Nomex andcotton fibers was 50/50.
- a comparative sample of flameproofed cloth was obtained according to the same manner as described in Example 1 except that twill fabric of 100% cotton was used.
- a comparative cloth sample was obtained according to the same manner as described in Example 1 except that twill fabric of 100% Nomex was used.
- a comparative cloth sample was obtained according to the same manner as described in Example 1 except that flameproofing was not effected
- the cloth of Example 1 or 2 is not torn in a hole or torn in to parts by contacting with flames and therefore a rise in temperature is little. Thus, it shows excellent protection against flames.Further, the cloth has better comfortableness in clothes due to low ultimate humidity and equilibrium humidity measured as climate in clothes as well as good dyeing properties and light-fastness.
- the cloth of 100% flame retardant cellulosic fibers or 100% wholly aromatic polyamide fibers in Comparative Examples 3 and 4 is not acceptable as cloth for protection against flames because it is torn in a hole by contacting with flames and a rise in temperature is great.
- Yarns of cotton count 60 were spun from raw fibers of Nomex (manufactured by DuPont de Nemours and Co.) of 1.5 denier and 51 mm in cut length.
- Spun yarns of cotton count 24 were prepared by winding yarns of cotton count 40spun from the following flameproofed wool fibers round the cores of the above wholly aromatic polyamide yarns (the ratio of the wholly aromatic polyamide fibers and the flameproofed wool fibers: 30/70). From the yarns thus prepared, there
- Raw flameproofed wool fiber Zirpro flameproofing was employed. Wool fiberswere treated in an Overmiyer with a flameproofing agent solution containing6.6% by weight of potassium fluorotitanium and 4% by weight of citric acid and adjusted to pH 2 with hydrochloric acid at 70° C. for 1 hour. The bath ratio was 1:10. Then, the fibers were washed water and dried.
- Cloth was prepared according to the same manner as described in Example 3 except that flameproofing was not effected.
- Cloth was prepared according to the same manner as described in Example 3 except that the fabric of 100% flameproofed wool fibers was used.
Abstract
--NHAr.sub.1 NHCOAr.sub.2 CO-- and/or --NHAr.sub.3 CO--
Description
--NHAr.sub.1 NHCOAr.sub.2 Co--and/or
--NHRa.sub.3 CO--
TABLE 1 __________________________________________________________________________ Comparative Comparative Comparative Comparative Comparative Example 1 Example 2 Example 1 Example 2 Example 3 Example Example __________________________________________________________________________ 5 Compounding ratio of wholly 25/75 50/50 25/75 50/50 0/100 100/0 25/75 aromatic polyamide fibers and flameproofed cellulosic fibers Flame phosphorus wt % 2.2 2.8 2.0 2.0 2.0 -- -- retardant cellulosic nitrogen wt % 1.0 1.4 1.1 1.1 1.0 -- -- fibers Protection against flames °C. 18 20 20 23 300< 300< 300< Break of cloth 1 kgf o o o x x x x when contact with flames *1 1.8 kgf o o x x x x x (load per 5 cm width) Comfort- max. 56.5 58.0 62.0 65.5 58.0 68.0 56.0 ableness humidity (% RH) (climate in clothes) equilibrium 48.0 48.5 56.0 55.5 50.0 62.0 47.0 humidity (% RH) Light-fastness of dyed 4 4 2-3 2-3 4-5 1 4 cloth *2 (rating) Dyeing properties *3 o o x x o -- o surface leveling LOI of flameproofed 29 30 (29) *4 (29) *4 30 -- 18 cellulosic fibers __________________________________________________________________________ *1 o: no break x: broken *2 Samples dyed with CI Basic Blue 47 on the Nomex side and with CI Vat Blue 6 on the cotton side were subjected to fademeter exposure at 63° C. for 20 hours and evaluated on grey scale (according to JISL-0842 method). *3 Samples dyed with CI Vat Orange 2 on the cotton side were evaluated for surface leveling by naked eye. o: good leveling x: poor leveling *4 estimation from N and P
TABLE 2 ______________________________________ Compar- Compar- Exam- ative ative ple 3 Example 6 Example 7 ______________________________________ Compounding ratio of wholly 30/70 30/70 0/100 aromatic polyamide fibers and flameproofed wool fibers LOI of flame proofed wool 0.33 0.24 0.33 Protection against flames °C. 17 300< 300< Break of cloth 1 kgf o x x when contact with flames *1 1.8 kgf o x x (load per 5 cm width) Comfort- max. 56.5 56.0 58.5 ableness humidity (% RH) (climate in clothes) equilibrium 48.5 48.5 49.0 humidity (% RH) ______________________________________ *1 The same as in Table 1
Claims (7)
--NHAr.sub.1 NHCOAr.sub.2 CO--πand/or
-NHAr.sub.3 CO--
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP62-27924 | 1987-02-09 | ||
JP62027924A JPS63196741A (en) | 1987-02-09 | 1987-02-09 | Cloth for protecting heat |
Publications (1)
Publication Number | Publication Date |
---|---|
US4868041A true US4868041A (en) | 1989-09-19 |
Family
ID=12234434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/153,914 Expired - Lifetime US4868041A (en) | 1987-02-09 | 1988-02-09 | Cloth for protection against flames |
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Country | Link |
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US (1) | US4868041A (en) |
JP (1) | JPS63196741A (en) |
Cited By (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0375113A2 (en) * | 1988-12-22 | 1990-06-27 | Springs Industries Inc. | Corespun yarn for fire resistant safety apparel and method |
US4987026A (en) * | 1988-08-31 | 1991-01-22 | Uniroyal Plastics Co., Inc. | Flame retardant fabric structure |
US5356700A (en) * | 1990-06-11 | 1994-10-18 | Teijin Limited | Aromatic polyamide fiber-polyester fiber-blended spun yarn fabric |
US5407728A (en) | 1992-01-30 | 1995-04-18 | Reeves Brothers, Inc. | Fabric containing graft polymer thereon |
US5486210A (en) | 1992-01-30 | 1996-01-23 | Reeves Brothers, Inc. | Air bag fabric containing graft polymer thereon |
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AU619040B2 (en) * | 1989-02-09 | 1992-01-16 | Springs Industries Inc. | Fine denier two component corespun yarn for fire resistant safety apparel and method |
JP2747571B2 (en) * | 1989-08-17 | 1998-05-06 | イー・アイ・デユポン・デ・ニモアス・アンド・カンパニー | Mixtures of cotton, nylon and heat-resistant fibers, yarns and woven fabrics |
FR2690627A1 (en) * | 1992-04-30 | 1993-11-05 | Lafarge Nouveaux Materiaux | Compositions useful for the prevention and / or fight against fire. |
JPH07189074A (en) * | 1993-12-27 | 1995-07-25 | Toyobo Co Ltd | Heat-resistant and flameproof fabric |
JP3098418B2 (en) * | 1996-03-18 | 2000-10-16 | 住江織物株式会社 | Flame retardant pile fabric |
FR2860957B1 (en) * | 2003-10-20 | 2005-12-23 | Php | TEXTILE BASED ON A MIXTURE OF COTTON AND ABRASION RESISTANT TECHNICAL FIBERS |
JP5126475B2 (en) * | 2006-06-29 | 2013-01-23 | 東洋紡株式会社 | Cold and water resistant materials and cold and water resistant clothing |
JP5126474B2 (en) * | 2006-06-29 | 2013-01-23 | 東洋紡株式会社 | Water resistant material |
JP5126476B2 (en) * | 2006-06-29 | 2013-01-23 | 東洋紡株式会社 | Protective materials and protective clothing |
JP2008031618A (en) * | 2006-06-29 | 2008-02-14 | Toyobo Co Ltd | Flame-retardant woven fabric |
JP5130473B2 (en) * | 2007-02-06 | 2013-01-30 | 東洋紡株式会社 | High-strength flame retardant fabric |
JP5188841B2 (en) * | 2008-03-05 | 2013-04-24 | ユニチカトレーディング株式会社 | Composite spun yarn and woven / knitted fabric |
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US4987026A (en) * | 1988-08-31 | 1991-01-22 | Uniroyal Plastics Co., Inc. | Flame retardant fabric structure |
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US5540980A (en) * | 1989-03-03 | 1996-07-30 | Springs Industries, Inc. | Fire resistant fabric made of balanced fine corespun yarn |
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US5486210A (en) | 1992-01-30 | 1996-01-23 | Reeves Brothers, Inc. | Air bag fabric containing graft polymer thereon |
US5407728A (en) | 1992-01-30 | 1995-04-18 | Reeves Brothers, Inc. | Fabric containing graft polymer thereon |
US5552472A (en) | 1992-01-30 | 1996-09-03 | Reeves Brothers, Inc. | Fabric containing graft polymer thereon |
US5876849A (en) * | 1997-07-02 | 1999-03-02 | Itex, Inc. | Cotton/nylon fiber blends suitable for durable light shade fabrics containing carbon doped antistatic fibers |
US6057032A (en) * | 1997-10-10 | 2000-05-02 | Green; James R. | Yarns suitable for durable light shade cotton/nylon clothing fabrics containing carbon doped antistatic fibers |
USRE42209E1 (en) | 1998-04-20 | 2011-03-08 | Southern Mills, Inc. | Patterned, flame resistant fabrics and method for making same |
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US20040002272A1 (en) * | 1999-09-28 | 2004-01-01 | Mckinnon-Land, Llc | Fire resistant corespun yarn and fabric comprising same |
US6146759A (en) * | 1999-09-28 | 2000-11-14 | Land Fabric Corporation | Fire resistant corespun yarn and fabric comprising same |
US6606846B2 (en) | 1999-09-28 | 2003-08-19 | Mckinnon-Land, Llc | Fire resistant corespun yarn and fabric comprising same |
US6410140B1 (en) | 1999-09-28 | 2002-06-25 | Basf Corporation | Fire resistant corespun yarn and fabric comprising same |
US6287690B1 (en) | 1999-09-28 | 2001-09-11 | Land Fabric Corporation | Fire resistant corespun yarn and fabric comprising same |
US6553749B2 (en) | 1999-09-28 | 2003-04-29 | Mckinnon-Land, Llc | Fire resistant corespun yarn and fabric comprising same |
US20040092187A1 (en) * | 2000-07-13 | 2004-05-13 | Frederique Favier | Thermal protection fabric |
US6620212B1 (en) | 2000-09-22 | 2003-09-16 | Mckinnon-Land, Llc | Method of dyeing a corespun yarn and dyed corespun yarn |
US7168231B1 (en) | 2002-09-05 | 2007-01-30 | Samson Rope Technologies | High temperature resistant rope systems and methods |
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Also Published As
Publication number | Publication date |
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JPH0244942B2 (en) | 1990-10-05 |
JPS63196741A (en) | 1988-08-15 |
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